<h2><pre>
if 判断为假的值:
    false
    0,
    +0,
    -0,
    NaN,
    空字符串,
    null,
    undefined,
    []
</pre></h2>
<hr>
<h3>Test:if 判断为假的值(红色)</h3>
<ul>
    {{#each falseValues}}

        {{#if this.val}}
            <li style="color:green;">{{this.str}}</li>
        {{else}}
            <li style="color:red;">{{this.str}}</li>
        {{/if}}

    {{/each}}
</ul>



<hr>
<h3>each 中使用 else</h3>
<ul>
    {{#each list}}
        <li>
            {{#if name}}
                name:{{name}},age:{{age}}
            {{else}}
                No name
            {{/if}}
        </li>
    {{/each}}
</ul>

<hr>
<h3>自定义Helper中使用'else'</h3>
<table>
    <tr>
        <th>Name</th>
        <th>Age</th>
    </tr>
    {{#each users}}
        <tr>
            {{#compare age 30}}
                <td>{{name}}</td>
                <td>{{age}}</td>
            {{else}}
                <td>{{name}}</td>
                <td>**</td>
            {{/compare}}
        </tr>
    {{/each}}
</table>